Previously, plastic manufacturers want to change the color, change the plastic
or remove the black spots on the plastic mixture is often the
next production to push out the old plastic or clear plastic or stop
the machine to clean the mold . The changes are wasted on material (for
creating waste, can be up to hundreds of kilograms of plastic) and time (can
be up to hours).
Now, a lot of detergent to the machine axis overcome the
shortcomings mentioned above.
the shaft detergent product just a middleman, not take
part in creating the final product. Shaft bleaching compounds without testing
under FDA control. (http://www.fda.gov).
On the market there are many products, mainly with 3 main types and
mixtures between them:
- Type of chemical: liquid and solid form, usually in liquid form and shape
solid, usually in the form of concentrated which often mixed with new plastic or
already premixed. Where detergents are put into the machine and soaked
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in cylinder long enough to trigger a chemical reaction. Chemical reaction
vessels will be modified polymer molecules need to be cleaned and is easily
pushed out next new plastic. Chemical cleaners are effective, but the price
is high and long soaking time. Some chemical cleaners generate odor
Ammonia and some other odors that are harmful to health. Also, bleach
wash chemical needs long time and soaked in high temperature machines should
Polymer may decompose, can cause corrosion of machinery.
- Mechanical type, abrasion: This type of detergent at a concentration high but
can be supplied pre-mixed form. Delivery system loaded with a high content
of glass beads, inert fillers. This system cleaning detergent by scouring
the cylinder and screw strong. Scouring the powerful and high filler content will
wear small tolerances between the screw and the cylinder, but this kind of cleanses will
wear faster than conventional screw. This type of detergent does not
flow, can explode when tiny high-temperature processing or through nozzles
or small stove top, they can be dangerous for equipment for working pressure
acting on the upper machine and flammable .
- type body / non-corrosive thermoplastic: bleach compound groups axis
easiest machines to use, as well as the safety of equipment and machinery.
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